What if Britain had accepted your argument in 1940?
It would arguably be more free and more British than it is now. On the Index of Economic Freedom UK ranks behind Chile. And don't speak openly of Jesus in public, you hater!
1) Russia today is not Nazi Germany, not even close. Britain is a near-fascist state itself in 2024, not the heroic Albion of 1940.
2) Russia poses no threat to British allies as Germany did in 1940. Russia wants parts of Ukraine, nothing more. Ukraine is not a British ally, it’s not even part of the West.
3) Had Britain not fought Germany, peace may have been obtained. Though Europe would be under German rule. The Holcaust of course would have been unstoppable BUT Russia is not commiting anything remotely close.
The comparison just doesn’t stand scrutiny. And there was zero chance then of a nuclear holcaust.